如何在vb.net中下载exe文件（Visual Studio 2015）

Question

I try make one program for download one .exe file and run for help in my job. But idk how to make this, i'm new in VB.

I am using this code, as shown in the Visual Basic document reference :

My.Computer.Network.DownloadFile _
("http://www.cohowinery.com/downloads/WineList.txt", _
"C:\Documents and Settings\All Users\Documents\WineList.txt")

But when I try to download an .exe file, the entire file doesn't complete and I the file is only 1 kb after download.

Answer 1

The webclient should be the way to go a comment above highlights that too.

This is an example from another question:

Either use sync method:

public void DownloadFile()
{
    using(var client = new WebClient())
    {
        client.DownloadFile(new Uri("http://www.FileServerFullOfFiles.net/download/test.exe"), "test.exe");
    }
}

Or use new async-await approach:

public async Task DownloadFileAsync()
{
    using(var client = new WebClient())
    {
        await client.DownloadFileTaskAsync(new Uri("http://www.FileServerFullOfFiles.net/download/test.exe"), "test.exe");
    }
}

Then call this method like this:

await DownloadFileAsync();

Answer 2

Open up the .exe file you are trying to download in a text editor like NotePad. Odds are what is being downloaded is an HTML page showing some kind of error message like 404 not found .

Another possibility might be that AntiVirus software is moving the original EXE into quarantine and replacing it with a Quarantine MetaData file.

If the file does actually contain binary content your connection could be getting interrupted but odds are if this happened an exception would be thrown.